Nearly 100,000 small hydropower dams exist or are planned worldwide, and science has done little to study or inform policymakers about cumulative environmental impacts.
Articles by Claire Salisbury
Flood pulses, important to Amazon basin aquatic and terrestrial ecology, are being severely impacted by both large and small hydropower dams.
Habitat fragmentation and biomass reduction on isolated forest islands at the Balbina dam – with trees replaced by lianas – resulted in increased carbon emissions.
This Atlantic hurricane season saw six Category 3-5 storms batter the Caribbean. Some already threatened species, especially birds, took a major hit. Others endured.
With COP23 well underway, scientists warn that President Temer’s policies could doom the Amazon and Brazil’s Paris goals, while destabilizing the global climate.
During the wet season, manatees swim Amazon basin floodplains; in dry times they migrate to lakes. Hundreds of planned dams could disrupt that cycle.
14 million Amazon animals and plants — caiman skins, turtles, parrots, orchids and more — are legally exported annually. Illegal trafficking levels are unknown.
Three South American studies find that severe deforestation in one region can impact faraway forests and continent-wide climate, while intact forests offer more resilience.
Tool helps communities, researchers, policymakers, activists assess a proposed dam’s economic viability, greenhouse gas emissions and more.
Amazon study: arboreal species actively use natural bridges above Peru pipeline, mitigating habitat fragmentation; could work for roads, other infrastructure.
Many dozens of major infrastructure projects — including highways, dams and mines — have been given the green light in the Brazilian Amazon in recent years, and hundreds more are…
The Madeira River, one of the Amazon’s major tributaries, is the focus of intense hydroelectric dam development, part of a massive wave of infrastructure construction occurring across the Amazon basin.…
The Amazon basin faces irreversible environmental disturbance on an enormous scale due to hydroelectric dam development. Hundreds of existing and planned dams in both the Amazonian lowlands and the Andean…
Tropical forests are home to more than 50 percent of terrestrial biodiversity, and they also play a globally important role in storing and sequestering carbon. Forest conservation can therefore help…
“I’m a dentist by training,” says Monica Nirmala, executive director of Indonesian non-profit Alam Sehat Lestari. The name translates to “Healthy Nature Everlasting,” and the organization, known by its acronym…
A species has just three options in the face of environmental change: move, adapt or die. As global temperatures rise many species are shifting their ranges, particularly towards the cooler…
From the Amazon Basin to boreal forests, and from the Mekong to the Himalayan foothills, rivers worldwide are being targeted for major new dams in a global hydropower boom that…
The 2015-16 El Niño had a record-breaking impact on the Amazon rainforest, with the region experiencing new extremes of heat and drought, a recent study found. Weather conditions such as…
Brazil is forging ahead with plans to build a vast hydropower dam complex in the heart of the Amazon that would convert the now remote and wild Tapajós river system…
ore than 160 bat species can be found flying through the Amazonian night — and their variety is astonishing. From the largest (the carnivorous Spectral, or False Vampire bat; Vampyrum…
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